/**
 * @Description
 */

public class MySingleList {

    static class ListNode {
        public int val;
        ListNode next;


        public ListNode(int val) {
            this.val = val;

        }

    }
        public ListNode head;
        public void crateList(){
            ListNode Node1 = new ListNode(1);
            ListNode Node2 = new ListNode(2);
            ListNode Node3 = new ListNode(3);
            ListNode Node4 = new ListNode(4);

             Node1.next = Node2;
             Node2.next = Node3;
             Node3.next = Node4;

             this.head = Node1;

        }

}
